Known date of colorized enlargement: 1882. Estimated date of original photograph: about 1880-1882.
I didn't purchase this one and didn't have a measuring tape with me, but it was probably something like 11x14, though they can be even larger. Attached to the back, there was a torn piece of paper with the date as October 2, 1882. Although the date of this one is known, the Library of Congress says crayon enlargements were available from the 1860's to the 1920's. There is a second date written along the side of the paper, November 14, 1882 - most likely, this is the date it was finished, which means it took little over a month to complete. The paper, as you can see below, includes information about what colors should be used. Much of it is missing, but it looks like the beard was described as "light brown but very grey". Something else, perhaps his hair, was "very brown and not so grey". I'm guessing the "(very?) black but very grey" was meant to be his eye color. Unfortunately, the price is not included, though there is a space for it on the form, and there's no company name surviving.
|Excuse my fingers, I had to hold down a torn|
and curling piece of the paper